Import initial Nix configuration files

configuration.nix

@@ -0,0 +1,111 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+      # Configuration local for this cluster node (hostname, IP, etc)
+      ./node.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.timeout = 20;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
+  # Per-interface useDHCP will be mandatory in the future, so this generated config
+  # replicates the default behaviour.
+  networking.useDHCP = false;
+
+  # Set your time zone.
+  time.timeZone = "Europe/Paris";
+
+  networking.extraHosts = ''
+192.168.1.21 cariacou
+192.168.1.22 carcajou
+192.168.1.23 caribou
+192.168.1.23 binarycache
+192.168.1.23 binarycache.home.adnab.me
+  '';
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  console = {
+    font = "sun12x22";
+    keyMap = "fr";
+  };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+  # Configure keymap in X11
+  # services.xserver.layout = "us";
+  # services.xserver.xkbOptions = "eurosign:e";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # sound.enable = true;
+  # hardware.pulseaudio.enable = true;
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.xserver.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.lx = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" "video" ]; # Enable ‘sudo’ for the user.
+  };
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    vim
+    tmux
+    wget
+    htop
+    links
+    git
+  ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+  
+  # Enable network time
+  services.ntp.enable = true;
+
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  networking.firewall.allowedTCPPorts = [ 22 ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.05"; # Did you read the comment?
+}
+

node/carcajou.nix

@@ -0,0 +1,24 @@
+# Configuration file local to this node
+
+{ config, pkgs, ... }:
+
+{
+  networking.hostName = "carcajou"; # Define your hostname.
+
+  networking.interfaces.eno1.useDHCP = false;
+  networking.interfaces.eno1.ipv4.addresses = [
+    {
+      address = "192.168.1.22";
+      prefixLength = 24;
+    }
+  ];
+
+  nix = {
+    binaryCaches = [
+      "http://binarycache.home.adnab.me"
+    ];
+    binaryCachePublicKeys = [
+      "binarycache.home.adnab.me:ErR6pMnewf9oVyZJd5uC2nI4EZF49c7Mh86eDZWYZaw="
+    ];
+  };
+}

node/cariacou.nix

@@ -0,0 +1,24 @@
+# Configuration file local to this node
+
+{ config, pkgs, ... }:
+
+{
+  networking.hostName = "cariacou"; # Define your hostname.
+
+  networking.interfaces.eno1.useDHCP = false;
+  networking.interfaces.eno1.ipv4.addresses = [
+    {
+      address = "192.168.1.21";
+      prefixLength = 24;
+    }
+  ];
+
+  nix = {
+    binaryCaches = [
+      "http://binarycache.home.adnab.me"
+    ];
+    binaryCachePublicKeys = [
+      "binarycache.home.adnab.me:ErR6pMnewf9oVyZJd5uC2nI4EZF49c7Mh86eDZWYZaw="
+    ];
+  };
+}

node/caribou.nix

@@ -0,0 +1,41 @@
+# Configuration file local to this node
+
+{ config, pkgs, ... }:
+
+{
+  networking.hostName = "caribou"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  networking.interfaces.eno1.useDHCP = false;
+  networking.interfaces.eno1.ipv4.addresses = [
+    {
+      address = "192.168.1.23";
+      prefixLength = 24;
+    }
+  ];
+  networking.interfaces.enp0s20u1.useDHCP = true;
+
+  # Enable nix-serve
+  services.nix-serve = {
+    enable = true;
+    secretKeyFile = "/var/cache-priv-key.pem";
+  };
+
+  # Configure a Nginx web server to serve NixOS cache
+  services.nginx = {
+    enable = true;
+    virtualHosts = {
+      "binarycache.home.adnab.me" = {
+        serverAliases = [ "binarycache" ];
+        locations."/".extraConfig = ''
+          proxy_pass http://localhost:${toString config.services.nix-serve.port};
+          proxy_set_header Host $host;
+          proxy_set_header X-Real-IP $remote_addr;
+          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        '';
+       };
+    };
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 ];
+}